Home / 258,720,515.79-387,889,454.07-156,461,819.55

Finding the Fourth Proportional to 258,720,515.79, 387,889,454.07 and 156,461,819.55

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Solution

The fourth proportional to 258,720,515.79, 387,889,454.07 and 156,461,819.55 is: 234,577,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,720,515.79 : 387,889,454.07 = 156,461,819.55 : x
  2. Step 2: Convert to fraction form
    258,720,515.79/387,889,454.07 = 156,461,819.55/x
  3. Step 3: Cross multiply
    258,720,515.79x = 387,889,454.07 × 156,461,819.55
  4. Step 4: Simplify right side
    258,720,515.79x = 60,689,889,768,048,360
  5. Step 5: Solve for x
    x = 60,689,889,768,048,360/258,720,515.79
  6. Step 6: Final answer
    x = 234,577,028.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.